Algodoo

Nice!

It does work quite well. if you want less lag, you can also change the gunpowder's properties instead of spawning another circle and deleting the first one. I'm not sure but I think that if you use too much of this or undo and fire it again too many times it will fill all your ram with crap. (that happened to me before )

Thanks, I can't change the properties of the gunpowder because relative to the size of the gunpowder multiple circles get spawned.

"this is fire"
Then why doesnt it rise up like fire.